Page 522 - Veterinary Immunology, 10th Edition
P. 522

apoptosis without participating in an immune response.
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                           FIG. 17.8  During its development, each B cell has four attempts to
                              make a productive gene rearrangement coding for a functional
                             immunoglobulin. If it fails in all four attempts, the cell undergoes
                                                       apoptosis.


                  The sequence of events described above has been worked out in
               mice and humans; the details differ in domestic mammals. One
               obvious difference lies in the use of κ and λ light chains. In mice,

               rabbits, pigs, and humans, κ chains are preferentially used. In the
               other domestic species, λ light chains predominate. The reasons for
               these differences are unknown.
                  It should also be pointed out that immunoglobulin gene




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